Problem: After I saw Bill catching flies and pulling off their wings, I boxed his ears. I showed the master the flies, some crushed and some crawling about helpless, and I showed *him* the wings on the window sill. I never saw him so angry before; but as Bill was still howling and whining, like the coward that he was, he did not give him any more punishment of that kind, but set him up on a stool for the rest of the afternoon, and said that he should not go out to play for that week.
Are "him" and "the master" the same?
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Answer: yes


Problem: It is not easy to space buttonholes exactly the same distance apart, and it is very difficult to cut them precisely the right size . The tiniest slip of the scissors will make the hole too large, and even one thread uncut will leave *it* too small.
Are "it" and "the scissors" the same?
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Answer: no


Problem: Tom gave Ralph a lift to school so *he* wouldn't have to walk.
Are "he" and "Ralph" the same?
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Answer:
yes